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Radio Gear
Channel 2
Reverse Switch
Neutral
Reverse
Channel 1
Reverse Switch
Neutral
Reverse
Throttle Trim
Steering
Trim
Bind Button
Power Switch
Power LED
Steering
Dual Rate
Binding Procedure
1. Turn on Transmitter
2. Hold Bind button on SRS Unit and turn on (release Bing
button), LED flashes
3. Press Bind button on Transmitter
4. Both SRS Unit and Transmitter will have Solid LED to
signify they are bound together
Caution: Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to the instructions.
1. Use only four (4) AA alkaline batteries in your ATX101 transmitter.
2. Do not dispose of the battery in a fire as it may explode. Check with local codes for possible special disposal instructions.
3. Do not open or mutilate the battery. Released electrolyte is corrosive and may cause damage to the eyes and skin. It
may be toxic if swallowed.
4. Exercise care in handling batteries in order not to short the battery with conducting materials such as rings, bracelets
and keys.The battery or conduction material may over-heat and cause burns.
Steering Trim Knob
Throttle Trim Knob
Throttle EPA
MR-303(MR-300)
Bind
rotating
rotating
rotating
rotating
knob
knob
knob
knob
CW
CW
C.CW
CW C.CW.
C.CW
B
F
+
Steering Trim Knob
Throttle Trim Knob
Throttle EPA
MR-303(MR-300)
Bind
rotating
rotating
rotating
rotating
knob
knob
knob
knob
CW
CW
C.CW
CW C.CW.
C.CW
B
F
+
Steering Trim Knob
Throttle Trim Knob
Throttle EPA
MR-303(MR-300)
Bind
rotating
rotating
rotating
rotating
knob
knob
knob
knob
CW
CW
C.CW
CW C.CW.
C.CW
B
F
+
Steering Trim Adjustment
Steering Dual-Rate Adjustment
Fail Safe Setup
Throttle Trim Adjustment
Steering neutral adjustments can be made by rotating the steering trim knob left or right.
When you install a servo, always check to be sure the servo is at its neutral position. Adjust the
servo horn position and linkage so both are parallel. Be sure the steering trim on the transmitter is
at the neutral position.
Trim Operation and Maximum Travel
Changing the trim can affect the overall settings. When adjustments are made with the trims,
recheck your installation for maximum travel. (Steering Dual-Rate at 100%)
When Trim Usage Is Extreme
If it takes most of your trim movement to get a servo to the neutral position, reposition the servo
horn on the servo and inspect your linkage installation.
Throttle neutral adjustments can be made by rotating the throttle trim knob left or right.
When using SRS Unit, set the throttle trim to neutral (0) and make adjustments to the speed
control.
Throttle Trim Knob
Steering Dual-Rate Knob
Steering Trim Knob
Use this function to adjust the steering travel of your vehicle. If the vehicle understeers while
cornering, add steering by rotating the Steering Dual-Rate knob to the left. When the vehicle
oversteers, take away steering by rotating the Steering Dual-Rate knob to the right.
1. Turn the power switch on the transmitter and SRS Unit to the ON position, the LEDs on the transmitter and SRS Unit are continuously
lit.
2. With the steering wheel and throttle in the neutral position, press and hold the SRS Unit setup button for 2 seconds until the red LED on
the SRS Unit flashes slowly, then press and hold the SRS Unit setup button again within 5 seconds (Note: After 5 seconds the fail safe
setup will reset, you have to start over from step 1) until the SRS Unit LED is continuously lit, that means the fail safe function has been
correctly set.
3. Verify if the failsafe function has been correctly set. Turn off the transmitter and check the SRS Unit engages the neutral position you
set.
4. Any new binding procedure will clear the failsafe
CONTROLLER OFF SECOND
Bind Button
17
